const path = require('path')
const defaultSettings = require('./src/settings.js')
function resolve(dir) {
  return path.join(__dirname, dir)
}

const name = defaultSettings.title || '报表平台' // page Title

// If your port is set to 80,
// use administrator privileges to execute the command line.
// For example, Mac: sudo npm run
// You can change the port by the following methods:
// port = 9528 npm run dev OR npm run dev --port = 9528
const port = process.env.port || process.env.npm_config_port || 9529 // dev port

// All configuration item explanations can be find in https://cli.vuejs.org/config/
module.exports = {
  /**
   * You will need to set publicPath if you plan to deploy your site under a sub path,
   * for example GitHub Pages. If you plan to deploy your site to https://foo.github.io/bar/,
   * then publicPath should be set to "/bar/".
   * In most cases please use '/' !!!
   * Detail: https://cli.vuejs.org/config/#publicpath
   */
  pluginOptions: {
    'style-resources-loader': {
      preProcessor: 'scss',
      patterns: [
        'C:\\Users\\Administrator\\Desktop\\工作资料\\JC-frontend\\src\\styles\\index.scss'
      ]
    }
  },
  // publicPath: '/demo-web',
  publicPath: '/jc-web', // 惠州杰希 dist1
  // publicPath: '/mlg-web', // 摩洛哥 dist2
  // publicPath: '/nx-web', // 惠州杰希内销 dist3
  // publicPath: '/jnk-web', // 电商 dist4
  outputDir: 'dist1',
  assetsDir: 'static',
  lintOnSave: process.env.NODE_ENV === 'development',
  runtimeCompiler: false,
  productionSourceMap: false,
  devServer: {
    disableHostCheck: true,
    port: port,
    open: true,
    overlay: {
      warnings: false,
      errors: true
    },
    proxy: {
      [process.env.VUE_APP_BASE_API]: {
        // target: 'http://192.168.1.95:8808',
        target: 'http://127.0.0.1:8888',
        changeOrigin: true,
        pathRewrite: {
          ['^' + process.env.VUE_APP_BASE_API]: ''
        }
      }
    }
    // before: require('./mock/mock-server.js')
  },
  configureWebpack: config => {
    // provide the app's Title in webpack's name field, so that
    // it can be accessed in index.html to inject the correct Title.
    config.name = name
    /** 忽略打包配置*/
    // config.externals = cdn.externals
    config.resolve.alias = {
      '@': resolve('src')
    }
  },
  chainWebpack(config) {
    /** 配置cdn引入*/
    // config.plugin('html').tap(args => {
    //   args[0].cdn = cdn
    //   return args
    // })
    // it can improve the speed of the first screen, it is recommended to turn on preload
    config.plugin('preload').tap(() => [
      {
        rel: 'preload',
        // to ignore runtime.js
        // https://github.com/vuejs/vue-cli/blob/dev/packages/@vue/cli-service/lib/config/app.js#L171
        fileBlacklist: [/\.map$/, /hot-update\.js$/, /runtime\..*\.js$/],
        include: 'initial'
      }
    ])
    config.optimization.minimizer('terser').tap((args) => {
      args[0].terserOptions.compress.drop_console = true
      args[0].terserOptions.compress.drop_debugger = true
      args[0].terserOptions.compress.pure_funcs = ['console.log']
      args[0].terserOptions.output = {
        comments: false
      }
      return args
    })
    // when there are many pages, it will cause too many meaningless requests
    config.plugins.delete('prefetch')

    // set svg-sprite-loader
    config.module
      .rule('svg')
      .exclude.add(resolve('src/icons'))
      .end()
    config.module
      .rule('icons')
      .test(/\.svg$/)
      .include.add(resolve('src/icons'))
      .end()
      .use('svg-sprite-loader')
      .loader('svg-sprite-loader')
      .options({
        symbolId: 'icon-[name]'
      })
      .end()

    config.when(process.env.NODE_ENV !== 'development', config => {
      config
        .plugin('ScriptExtHtmlWebpackPlugin')
        .after('html')
        .use('script-ext-html-webpack-plugin', [
          {
            // `runtime` must same as runtimeChunk name. default is `runtime`
            inline: /runtime\..*\.js$/
          }
        ])
        .end()
      config.optimization.splitChunks({
        chunks: 'all',
        cacheGroups: {
          libs: {
            name: 'chunk-libs',
            test: /[\\/]node_modules[\\/]/,
            priority: 10,
            chunks: 'initial' // only package third parties that are initially dependent
          },
          elementUI: {
            name: 'chunk-elementUI', // split elementUI into a single package
            priority: 20, // the weight needs to be larger than libs and app or it will be packaged into libs or app
            test: /[\\/]node_modules[\\/]_?element-ui(.*)/ // in order to adapt to cnpm
          },
          commons: {
            name: 'chunk-commons',
            test: resolve('src/components'), // can customize your rules
            minChunks: 3, //  minimum common number
            priority: 5,
            reuseExistingChunk: true
          }
        }
      })
      // https:// webpack.js.org/configuration/optimization/#optimizationruntimechunk
      config.optimization.runtimeChunk('single')
      // 正式环境下，删除console和debugger
      config.optimization
        .minimize(true)
        .minimizer('terser')
        .tap(args => {
          const { terserOptions } = args[0]
          terserOptions.compress.drop_console = true
          terserOptions.compress.drop_debugger = true
          return args
        })
    })
  }
}
